Benchmark: Lodash.get vs Property dot notation (test more)

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var person = {name: 'Frederick', lastName: 'Corcino Alejo', details: { something: [ {age: 2}] } };

Tests:

Lodash get
_.get(person, 'details.something.0.age');
Native
person.details.something[0].age

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash get
Native

Fastest: N/A

Slowest: N/A

Latest run results:

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

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**Benchmark Overview**

The benchmark compares two approaches to access an object property: Lodash's `_.get` method and native property dot notation (also known as bracket notation). The test uses a predefined JSON object, `person`, with nested properties.

**Test Case 1: Lodash.get**

The first test case measures the execution time of using Lodash's `_get` method to access the `age` property within the `details.something[0]` object. Specifically, it calls `_.get(person, 'details.something.0.age')`.

**Test Case 2: Native Property Dot Notation**

The second test case measures the execution time of using native property dot notation (bracket notation) to access the same `age` property within the `details.something[0]` object. Specifically, it calls `person.details.something[0].age`.

**Comparison and Pros/Cons**

Both approaches are used to demonstrate the performance difference between using a library (Lodash) versus native JavaScript methods.

Pros of Lodash's `_get` method:

*   Easier to read and maintain code, especially for complex object access scenarios.
*   Reduces typos and errors by providing a more explicit way to navigate objects.

Cons of Lodash's `_get` method:

*   Adds an external dependency (Lodash library), which may slow down the execution time due to overhead from loading the library.
*   May be less performant than native property dot notation for simple object access scenarios, depending on the specific use case.

Pros of Native Property Dot Notation (bracket notation):

*   Faster execution times since it doesn't require loading an external library.
*   Typically more efficient for simple object access scenarios with a small number of nested properties.

Cons of Native Property Dot Notation:

*   Can be less readable and maintainable, especially for complex object access scenarios or when dealing with deeply nested objects.

**Library: Lodash**

Lodash is a popular JavaScript utility library developed by Isaac Schlueter. It provides over 100 functional programming helpers and tools to simplify common tasks in JavaScript applications, such as array manipulation, string formatting, and object traversal.

In this benchmark, Lodash's `_get` method is used to provide a convenient way to access nested properties within the `person` object.

**Special JS Feature/Syntax**

This benchmark does not specifically highlight any special JavaScript features or syntax. However, it demonstrates the importance of considering performance and readability when choosing between library methods versus native JavaScript methods for object access scenarios.

**Alternatives**

Other alternatives for accessing nested properties in JavaScript include:

*   **Array.prototype.at()**: Introduced in ECMAScript 2019, this method provides a more concise way to access elements within an array using dot notation (e.g., `arr.at(0)`).
*   **Object.entries()** and **Object.keys()**: These methods can be used to iterate over object properties and access nested objects using bracket notation (e.g., `obj[`${key}.${property}`]`).

MeasureThat.net provides a comprehensive testing platform for JavaScript microbenchmarks, allowing developers to compare the performance of different approaches to common coding challenges.

Related benchmarks:

Lodash.get vs Property dot notation (test more) (version: 0)

Comparing performance of: Lodash get vs Native

Created: 7 years ago by: Guest

Jump to the latest result

Lodash get

Native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):